> Why would I chose a protocol that used a symmetric cipher over an asymmetric one? This one took me a while until we needed it for an IOT widget. Asymmetric

> Why would I chose a protocol that used a symmetric cipher over an asymmetric one? This one took me a while until we needed it for an IOT widget. Asymmetric keys are real CPU-heavy and most market crypto will instead use symmetric keys, then send some asymmetric keys down the pipe.